It looks like you have 4 black COAX cables connected to the splitter in the upper right corner of the panel box. If Xfinity activates all 4 of these, you will need to locate the outlets in the house which should become active. You can connect the modem to any of these outlets, and, if you are subscribing to the standard cable box TV programming, you will need to rent a cable box for each of the outlets that you want to use. Anthor option is to use wifi to stream to your smart TVs, or to rent Xfinity wireless cable boxes. If you need an outlet in another location, you will need to pay Xfinity or an electrician to install a new outlet. Also, there may be additional outlets in your house that do not become active. If you want to use these, you will need to disconnect a cable from the splitter and connect another cable to the splitter. This can be a DIY project. Good luck.

Note that Xfinity changed their model for new customers to unlimited data.

The modem will be placed in the best area with signal strength for the devices that need to be using it

What about the existing customers?

Having a data cap on wired Internet is so ridiculous these days. Internet companies usually implement a cap becasue they can't guarantee to provide service a large percentage of time for all their customers.

My guess is they made the change in policy now that so many people have left Xfinity, they have plenty of cable capacity to serve everyone on their system.

Welcome to the neighborhood. Live on Dagenais. Only one cable is connected. Ours was in the living room. Lucky it is centered behind the TV. Will be back late July. PM me if you like. Cheers, steve

Centric, or other fiber feeds, are not available in Linden.
OP choice for a wired feed is only Spectrum or XFinity.

The OP's photo shows 4 cables exiting the top of the panel, so I assume that all of them go to wall outlets in the house, and will be activated when Xfinity turns on the service.

I also have my modem in my office w a desktop computer. And it is the 3rd bedroom located at a corner of the house.

AND the latest Xfinity Router has no problem delivering a Very Strong Signal throughout the entire house and property

See Post No. 12. The OP is doing a self-install, so Xfinity will not be coming to the house. If you want Xfinity to come to your house, they will charge you about $100 to $200 for the visit.

Don’t use Xfinity. That will solve your problem.

A lot of people are giving you answers without asking questions. What is the layout of your house, how many devices will you be runnining, what kind of speeds are you aquiring from them, will you be streaming to TV(s) and if so, how many and which rooms. You may need more equipment than you think and one modem may not do the job.

Topspinmo and Carlr33 had the best answer. Set up an appointment and tell your installer what you want to run and they can give you options and you can decide from there as far as speeds, modem location, potential need for additional routers, etc. and of course, cost. Then you can make a better decision. I helped my mom when the tech came to set up her house when she changed providers and she needed a little more than just a router, but she is extremely happy with their work and the results and it was actually cheaper than her previous provider with way better speeds and no buffering on her tv’s.

I would not pay Xfinity for a house call if you don't need it. Get the modem/router and plug it in to each COAX outlet and use a smart phone or laptop to see how strong the wifi signal is in every room in the house. Typically, Xfinity provides a combination modem/router. You can measure the Internet speed for free at "speedtest.net". I have never had to add additional equipment. Good luck.

Connect it to any cable outlet in the house. They all go to the connection at the box.

It's been a few years, but Xfinity offered me a self install or they would install for free. I did it myself, but there was some signal issue. When Xfinity came to check it out, there were splitters on splitters in the cable box. There were 7 or 8 tv cable drops in and outside the house. He redid everything and then ran a new cable to my office where the modem was installed. He ran it thru the attic and down the inside of the wall. Imagine my surprise when he said there was no charge. A good tip was in order.

I am thinking about buying the house next door for family and friends. Is it possible to use internet from 1 house to another? Seems like a shame to pay for the home with little use.